Portable washing and cleaning apparatus for the various kinds of the enclosed engine parts



July 28, 1959 TAKESHI IWASAKI 2,896,645 PORTABLE WASHING AND CLEANINGAPPARATUS FOR T VARIOUS KINDS OF THE ENCLOSED ENGINE PARTS Filed May 4,1954 INVENTOR TAKESH' IWASAW- ATTORNEYS PORTABLE WASHING AND CLEANINGAPPARA- TUS FOR THE VARIOUS KINDS OF THE EN- CLOSED ENGINE PARTS TakeshiIwasaki, Kawasaki City, Japan Application May 4, 1954, Serial No.427,504

2 Claims. (Cl. 134-111) The present invention relates to washing andcleaning apparatus for the various kinds of the enclosed engine partsespecially for the crank case of an automobile engine. This apparatusconsists of a filter tank, oil tank, vacuum tank, electrically drivenvacuum pump, electrically driven high pressure reversible compressionpump and the pipes suitably connecting each of the said members, whichare arranged on a carriage. In this invention a fixed quantity ofcleaning oil can be repeatedly circulated by the alternate operation ofthe high pressure injection and the high vacuum withdrawal of thecleaning oil through the special nozzle, followed by the change of thenormal operation on a reversing of said reversible compression pump.

The object of this invention is to obtain a washing and cleaningapparatus capable of washing completely the enclosed engine parts in avery short time and to eliminate the waste of cleaning oil by theartificial repeated circulation of the cleaning oil and thus to alwayskeep the working of the engine in the best condition.

Fig. l is a schematic view of the present device connected to an enginefor cleaning the interior thereof.

Fig. 2 is an enlarged view of a nozzle of the device inserted through anengine oil pan.

Fig. 3 is a side elevation of the device.

Fig. 4 is a plan view of the device.

Fig. 5 is a front view thereof.

Fig. 6 shows the piping arrangement.

Referring now more in detail to the accompanying drawing wherein likeand corresponding parts are designated by similar reference characters,the present apparatus is mounted on the carriage 1 having wheels 2 andis easily portable. Before starting the washing operation, it isnecessary to start the vacuum pump 3 for efiecting a vacuum in tank 4.The reversible pump 5 is then started and the injection nozzle 6 whichis provided with a fitting plug 7 is inserted into the crank case 8 forinjecting the cleaning oil from the oil tank 9 thereby cleaning theinside of said crank case. At the time time, the special suction nozzle10 is inserted in said crank case for withdrawing the dirtied oil afterfinishing the cleaning action and directing the same through the filter11 to said vacuum tank.

This operation completes the injection of the oil in approximately tenseconds. Immediately reversing the operation of said reversible ptunpconverts the injection nozzle to a suction nozzle which draws in thedirtied oil from said crank case. Thus, this dirtied oil flows into thefilter tank 12 after passing through the filter 13 and by the oil gauge14.

This operation is also limited to approximately ten seconds. In thepresent example by a few repeated opera tions as above described, thecrank case 8 can be completely washed and cleaned and the cleaned oilpassing through the oil gauge 14 becomes transparent and clear. Alsocleaning oil is drawn in by nozzle 10 after it is injected from nozzle 6and'when said nozzle 6 functions atent 2 as a suction nozzle, bothnozzles -6 and 10 withdraw the oil.

The dirtied oil accumulated in said vacuum tank can be directed into thefilter tank at the proper time by the'op eration of the valves 15, 16and 17 and a reversible pump 5. The filter tank 12 operates ina vacuumstate at all times and the filtered oil is accumulated in the oil tank.

Nozzle 6 is connected to pipe 19 which in turn is connected to valve 17which has pipe 18 connected thereto extending to the oil tank 9.

Nozzle 10 is connected to a pipe 20 which extends into the vacuum tank 4and has a valve 16 interconnected therein for controlling the flow ofoil therethrough.

A by-pass pipe 21 is connected to said valves 16 and 17 for connectingpipes 19 and 20 at times converting nozzle 6 into a suction nozzle. Whensaid valves 16 and '17 are changed pipes 19 and 20 are disconnectedwhere by nozzle 6 is an oiled injection nozzle.

Pipe 18 further has a valve 15 connected to pipe 22 extending intofilter tank 12 for directing the flow of oil thereto when nozzle 6 is asuction nozzle but otherwise disconnecting pipes 18 and 22. *Pipe 22also has the oil gauge 14 connected therein.

Pipe 19 has filter 13 interconnected therein, pipe 20 has filter 11interconnected therein, while the reversible pump 5 is interconnected inpipe 18.

Suction pump 3 is shown as being connected by pipe 23 to the vacuum tank4.

By this invention, the waste of the washing oil can be very much reducedby the repeated circulation of the oil supplied in a fixed quantity andthe complete washing and cleaning of the engine crank case can beaccomplished in a very short time. Thus the cleaning oil can be usedvery economically without abandonment of the cleaning oil as uselessafter every cleaning operation as herebefore and the engine can thus bekept in its best running condition.

I claim:

1. A portable washing and cleaning apparatus for enclosed engine memberscomprising a tank, a vacuum pump connected to said tank for creating avacuum therein, an oil supply tank, a nozzle for being inserted in saidengine, a pipe connecting said nozzle to said oil supply tank, areversible pressure and vacuum pump interconnected in said pipe, a valveconnected in said first mentioned pipe between said nozzle and saidreversible pump for controlling the flow therethrough, a suction nozzlealso for being inserted in said engine, a pipe connecting said suctionnozzle to said vacuum tank, a valve connected in said second pipe forcontrolling the flow 'therethrough, a filter tank for cleaning said oilconnected to said first mentioned pipe, a bypass pipe connecting saidvalves for at times diverting flow between said first and secondmentioned pipes, whereby said first-mentioned nozzle can be used tosupply cleaning oil into said engine or draw the same away in repeatingcycles, means for drawing cleaned oil from said filter tank to said oilsupply tank and a portable carriage supporting all of the aforementionedelements.

2. A portable washing and cleaning apparatus for enclosed engine memberscomprising a vacuum tank, a vacuum pump connected to said tank forcreating a vacuum therein, a cleaning oil supply tank, a nozzle forbeing inserted in said engine, a pipe connecting said nozzle to saidcleaning oil supply tank, a reversible pressure and vacuum pumpinterconnected in said pipe for alternately moving oil in oppositedirection in said pipe, a valve connected in said pipe between saidnozzle and said reversible pump for controlling the flow through saidpipe, a suction nozzle also for being inserted in said engine, a pipeconnecting said suction nozzle to said vacuum tank, a valve connected insaid second pipe for controlling the flow therethrough,

3 a filter tank for cleaning said oil connected to said first mentionedpipe, a valve controlling the flow of oil from said first-mentioned pipeand said filter tank, a by-pass pipe'connecting said first and secondmentioned pipe valves for directing flow at times therebetween wherebyReferences Cited in the file of this patent UNITED STATES PATENTSOsborne 'Feb. 19, 1929 Powell Nov. 19, 1940 Schmitt Mar. 4, 1941Saussure Apr. 29, 1941 Gray Feb. 23, 1943 Domingo Feb. 22, 1955' was u l

